﻿using RichMan4LApp . Common;
using System;
using System . Collections . Generic;
using System . IO;
using System . Linq;
using System . Runtime . InteropServices . WindowsRuntime;
using Windows . Foundation;
using Windows . Foundation . Collections;
using Windows . Graphics . Display;
using Windows . UI . ViewManagement;
using Windows . UI . Xaml;
using Windows . UI . Xaml . Controls;
using Windows . UI . Xaml . Controls . Primitives;
using Windows . UI . Xaml . Data;
using Windows . UI . Xaml . Input;
using Windows . UI . Xaml . Media;
using Windows . UI . Xaml . Navigation;

// The Basic Page item template is documented at http://go.microsoft.com/fwlink/?LinkID=390556

namespace RichMan4LApp
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class BasicPage1 : Page
    {
        private NavigationHelper navigationHelper;
        private ObservableDictionary defaultViewModel = new ObservableDictionary();

        public BasicPage1 ( )
        {
            this . InitializeComponent ( );

            this . navigationHelper = new NavigationHelper ( this );
            this . navigationHelper . LoadState += this . NavigationHelper_LoadState;
            this . navigationHelper . SaveState += this . NavigationHelper_SaveState;
        }

        /// <summary>
        /// Gets the <see cref="NavigationHelper"/> associated with this <see cref="Page"/>.
        /// </summary>
        public NavigationHelper NavigationHelper
        {
            get { return this . navigationHelper; }
        }

        /// <summary>
        /// Gets the view model for this <see cref="Page"/>.
        /// This can be changed to a strongly typed view model.
        /// </summary>
        public ObservableDictionary DefaultViewModel
        {
            get { return this . defaultViewModel; }
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="sender">
        /// The source of the event; typically <see cref="NavigationHelper"/>
        /// </param>
        /// <param name="e">Event data that provides both the navigation parameter passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
        /// a dictionary of state preserved by this page during an earlier
        /// session.  The state will be null the first time a page is visited.</param>
        private void NavigationHelper_LoadState ( object sender , LoadStateEventArgs e )
        {
        }

        /// <summary>
        /// Preserves state associated with this page in case the application is suspended or the
        /// page is discarded from the navigation cache.  Values must conform to the serialization
        /// requirements of <see cref="SuspensionManager.SessionState"/>.
        /// </summary>
        /// <param name="sender">The source of the event; typically <see cref="NavigationHelper"/></param>
        /// <param name="e">Event data that provides an empty dictionary to be populated with
        /// serializable state.</param>
        private void NavigationHelper_SaveState ( object sender , SaveStateEventArgs e )
        {
        }

        #region NavigationHelper registration

        /// <summary>
        /// The methods provided in this section are simply used to allow
        /// NavigationHelper to respond to the page's navigation methods.
        /// <para>
        /// Page specific logic should be placed in event handlers for the  
        /// <see cref="NavigationHelper.LoadState"/>
        /// and <see cref="NavigationHelper.SaveState"/>.
        /// The navigation parameter is available in the LoadState method 
        /// in addition to page state preserved during an earlier session.
        /// </para>
        /// </summary>
        /// <param name="e">Provides data for navigation methods and event
        /// handlers that cannot cancel the navigation request.</param>
        protected override void OnNavigatedTo ( NavigationEventArgs e )
        {
            this . navigationHelper . OnNavigatedTo ( e );
        }

        protected override void OnNavigatedFrom ( NavigationEventArgs e )
        {
            this . navigationHelper . OnNavigatedFrom ( e );
        }

        #endregion
    }
}
